Settlement Monitoring of the Earth Dams by Performance Periodical Topo-Geodetic Measurements

Abstract

The paper presents the current way of elaboration of the topographical and cadastral documentation needed in the process of tracking the behavior of hydrotechnical constructions such as earth dam. The studied area is represented by the accumulation of Pârcovaci located in the Deleni territorial administrative unit in Iași county. Using topo-geodetic measurements the magnitude of the vertical displacement of the studied construction were determined. The measurements were performed during the exploitation period of the dam, during 23 series of observations. Thus, there were highlighted the displacements of landmarks located on coping dam, downstream slope and outlet tower. Charts of evolution over time of vertical deformation have been made according to field observation. Also, the suface of the land corresponding to the whole of the accumulation of Pârcovaci was registered at Office of Cadastre and Real Estate Advertising Iași, through first registration documentation. This has made precise spatial delimitation of the set of lands and construction of studied area, and the whole land was recorded in the land book by assigning a unique cadastral number.

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“…This contributes to a full understanding of the structural and tectonic mechanisms caused by the interaction between the lake, the site and the dam body. GNSS technology allows high measurement accuracy with relatively little effort, compared to conventional terrestrial techniques (Andrei, 2012;Agapie and Luca, 2020;Kalkan, 2009).…”